Demountable rim.



R. W. ASHLEY & F. OBERKIRGH.

DEMOUNTABLE RIM. APPLICATION FILED QEPT. 21, 1912.

Patented Apr. 8, 1913.

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R W ASHLEY & F OBERKIRGH DEMOUNTABLE RIM.

APPLIOATION FILED SEPT 21 1912 1,058,399 Patented Apr. 8, 1913.

2 SHEETS-SHEET 2 Wham! 86" one of the tire retainingmings,

' of the separable v trating in connection therewith means for arable split ring,

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- 1 GENERAL mm COMPANY, A

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4 To all whom it may concern: Be it known that we,

and FRANK OBERKIRCH, citizens." of the New York and State of New York, have invented cert-ainnew and useful Improvements in Demountable Rims, of which the following is a specification;

'lhe invention relates to improvements in 'demountable rims andhas ence to that type of rim utilized in connection with pneumatic purposes.

The object of ing of a demountable rim having associated "therewith means f0r;reinforcing the base rim circumferentially, said'base rim carrying tire retaining rings adapted to receive a pneumatic tire, said rin being so arranged with relation to ear base rim as to reinforce the supportin features of said d mountable rim, and a xed annular ri'mfor su porting said demountable rim. 4

I n the following is described in connection with the accompanying drawingsone embodiment of the invention, the features thereof being more 'articularly pointed out hereinafter 1n the c aims.

In the drawings Figure 1 is a cross sectional view of the demountable rim, showing the relation of the same upon the fixed annular rim; Fig. 2 is 'a face elevation of which is separable from-the base member of saiddemountable rim; Fig. is a sectional detail tire retaining ring, illus-' locking the split ends of said separable ring to one of the reinforcing channels on the base member of said demountable rim; Fig. .4: is an underview of the endsof said sepillustratil a modified form of lockm the said ring in the'reim forcing channe of said demountablerim; Fig. '5 is a detailed view, partly in sect on, of the split ends of said separable tire I re- 'taining ring; and, Fi B'is a cross sectional view of the preferre type of demountable rim, illustrating in'connection therewith the preferred form of demountable r1m,support base rim, or fixed'felly rim. 1

Sixm a-r numerals .of reference indicate hroughout the several views,

I Specification off-Letters Patent. Q Application filed September 21, 1912. Serial No. 721,701.-

ROBERT W. ASHLEY particular/refer shoulder (8) and adjacent tires for vehicle wheel.

the invention is the provid-' channel (10); ,B

to engage the inside surface of 'said clip (17) in ring maticshoes.

' s ends "of depending In the drawings (1') indicates a felly, havin mounted thereon afixed annular rim (2% provided at its front edge with an annular oove (3) andat its rear edge with a retaming shoulder (4); Said groove (3) has-mounted therein a floatin locking retaining ring (5), the object 0% rovidenieans for holdin (6) on said fixed rim (2 --Said demountable rim (6) com rises a base rim (7) having formed on its rear edge a retaining thereto a dependng channel w(9), and on its front-edge a depending reinforcing channel (10) adapted 'toreceive, separable tire retaining split ring (11) which has formed on its inner surface two. depending flanges (12) forming between-said respective flanges a groove adapted to span the outer wall (14) of providing ring (11) with two depending anges (12). said ring (11) is not only erm'anentlysupported in channel' (10) on Base rim (7) but the outer flange (12) '-reinforces and strengthens the wall (1.4) of channel (10). Ring (11) described as being a split ring has formed in the split I v 1 v I ASHLEY AND FRANK onnnxmon, or new roan, N. Y., ASSIGNORS 'ro "conronarron on NEW YORK.

Patented Apr. 8,1913.

which is to vdemountable rim ends an aperturef(15) adapted to receive a I locking means (16) which comprises a steel clip (17 having and a laterally projecting base (19) whichprojects :beneath channel (10) and has mounted therein a set screw (-20) ada ted and when Permanent-1y in place thereon lock- (11) on base rim (7). The wall (14) of channel (10.) having cut formed thereon pins (18) channel 10) therein a slot (21) through which pins (18). I

on cli pending flanges (12)thereof lpermitting said pins (18) to permanently 100 the split ends of ring (11) together, as well as u on the base rim (-7-). Demount-able rim 6) has mounted on the rear end" thereof and s an-' 'ning channel (9) a-tire retainin ring 22) both-of said rings ('11 and 22 vbeing reversible for divers types and forms of pneu- Referrin to Fig. 4 of the drawings, the split ring 11) is'so split asgto form an L aped locking surface (23). r The alternate flanges (12) being out away'as' at (24) to6permit of the easy r'e- (17) pr0ject,the aperture (15) on ring. 11) projects through both of the d e This type of structure also provides a means of obviating any possible corrosion or sticki (30) of channel Channel (29) is of length of flanges (12) on ring 11) thereby (22) described as spanning channel 9) also obviating the corrosion of that ring.

Referring to Fig. (3 of the drawings, the

type of general structure shown therein comprises substantially the preferred type of demountable rim and annular fixed rim, as heretofore described. The base member (25) of said demountable rim has formed at its rear edge a retaining shoulder (26), and on the under surface immediately adjoining said shoulder a depending rib (27) provided with a tapered supporting surface (28). The forward edge of member of the demountable rim has formed therein a depending channel (29) provided with an inner supporting surface (30), and at the edge of said channel (29) an upwardly projecting annular rib or wall (31), and at its extreme edge with an overlapping flange (32). 33) indicates the fixed rim which is provided at its rear edge with a supporting retaining shoulder (34), upon which the tapered supporting surface (28) of rib (27) rests, providing at that point a rocking surface for demountable rim (25), the front edge of fixed rim (33) having formed therein an annular groove (35) ada ted to receive a suitable locking means fiir said demountable rim. The outer wall (36) of groove 35) projects upwardly and 'meets substantially the over-lapping flange of rim (25), forming in this instance a housing for the demountable rim locking means. At thepoint where groove (35) is bent downwardly from the surface of fixed rim (33) acurved surface (37) is formed upon which the tapered supporting surface (29) rests, providing a wedge locking reception supporting surface, as Well as a surface from which the demountable rim (25) may be readily rocked and demounted. The split ring (11) is provided with the depending flanges (12), which when mounted upon rim (2.5) span rib (31), thereby not only providing a secure means of holding ring (11) on said rim (25) but reinforcing said rim (25) at a point where the strength thereof is required. a greaterde th than the providing means obviating the corrosion of the ring (11) at that point upon rim (25), and furthermore, obviating, to a great extent, the sticking of the retaining shoulder on the pneumatic shoe. A tire retaining ring is also placed upon rim (25) bot-hof saidrings being reversible for divers types and forms-of tires, as is hereinabove described. A suitable lug (38), is spot welded on the under surface of rim (25) and "so arran ed as to engage an aperture in fixed rim (33% for preventing the circumferential or creeping movement of said rim (25), or the demountable structure upon the fixed annular retaining rim.

It is obvious that the device herein shown and described may be varied in its structural features without departing from the spirit of the invention.

What we claim. and desire tosecurc by Letters Patent of the United States isl. A device of the character described comprising a dcn'iountable base rim, :1. re taining shoulder at its rear edge, a, support ing annular rib formed on the under surface of said base rim adjacent to said retaining shoulder, a depending channel formed in said base rim provided with a diagonally inclined supporting surface, an upwardly projecting annular rib formed on said base rim adjacent to said depending channel, a flange formed on said rim on the extreme outer edge thereof and adjacent to said annular upwardly projecting rib, a separable ring mounted on said base rim and engaging the supporting shoulder at the rear edge of said rim, and a split ring provided with two depending flanges spanning said annular upwardly projecting rib, one of said flanges engaging the periphery of the outer flange of said rim, the other of said flanges projecting into said depending channel.

2. A device of the character described comprising a dcinonntable base rim, :1 retaining shoulder at the rear edge thereof, a, supporting annular rib formed on the under surface of said base rim adjacent to said supporting shoulder, a depending channel formed in said base rim provided with a di agonall-y inclined supporting surface, an up wardly projecting annular rib formed on said base rim adjacent to said depending channel, an overlapping flange formed on said rim on the extreme outer edge thereof and adjacent to said annular upwardly pro jecting rib, a separable ring mounted. on said base rim and engaging a, supporting shoulder at the rear edge of said rim, a split ring provided with two depending flanges spanning said annular upwardly projecting rib, and means mounted in the split ends of said ring for locking said ends permanently on said base rim.

3. A device of the character described comprising a .demountable base rim, 2. retaining shoulder formed thereon at the rear edge thereof, a reinforcing annular rlh formed on the under surface of said base rim adjacent to said supporting shoulder provided on its under surface with a diagonally inclined base, a depending channel formed in said base rim on the opposite edge thereof provided on its under surface with a diagonally inclined supporting wall, an upwardly projecting annular rib formed on said base rim adjacent to said depending channel, an overlapping flange formed on ill;

1o said upwardly projecting rib and the lnner walls of said depending channel for locking said split ring to said base rim.

In testimony whereof we have hereto signed our names in the presence of two subscribing witnesses.

ROBERT WV. ASHLEY. FRANK OBERKIRCH.

Witnesses v E. E. Haunts, CHARLES C. LINK. 

